Inflow velocity- ensures proper inflow is maintained for operator protection and environmental protection

Downflow velocity- documents the air in the work area is unidirectional and functioning as designed, preventing cross contamination, and providing product protection from the environment

HEPA filter testing- documents leakage or defects, and ensures HEPA filters provide required filtration to prevent both product and environmental contamination

Smoke pattern- qualitatively verifies airflow directions using a small source of visible fog

Site installation and alarm- confirms alarm performance and assesses installation of units for NSF and OSHA compliance